3 engine operation, Gas/diesel starting procedure, 3 engine operation -2 – JLG X550AJ Operator Manual User Manual

Page 46: Gas/diesel starting procedure -2, Ground/emergency control box -2

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SECTION 4 - MACHINE OPERATION

4-2

– JLG Lift –

3128791

4.3 ENGINE OPERATION

NOTE: Initial starting must always be performed from the

ground controls.

The gas/diesel engine key switch on the engine must be
switched to ON, the battery disconnect switch must be ON
(see Section 4.10 on page 4-22) and power/emergency stop
buttons at the platform and ground controls must be ON
(turned clockwise) to start the engine.

Gas/Diesel Starting Procedure

NOTE: If gas/diesel engine fails to start promptly, do not

crank for an extended time. Should engine fail to start
again, allow starter to cool off for 2-3 minutes. If
engine fails after several attempts, refer to manufac-
turers engine maintenance manual.

NOTE: If engine is diesel, when starting from ground, turn the

start key at the engine to the HEAT (glow plug) posi-
tion for 10 to 15 seconds before attempting to start.
Release the key and start the engine.

1. Set the key at the Ground/Emergency Control box in

the neutral (vertical) position, then push the appro-
priate ENGINE START switch until engine starts.

NOTE: Allow gas/diesel engine to warm-up for a few minutes

at low speed before applying any load.

Figure 4-1. Ground/Emergency Control Box

1. Platform/Remote (Center)

Platform Position

2. Ground Control Position -

(Turn ClockWise and Hold)

3. Platform/Remote Ground

Maintenance Position -
(Turned CounterClockWise)

4. Gas/Diesel Engine Start

Button

(1)

(if equipped)

5. Electric Engine Start Button

(1)

6. Enable Light

NOTE: (1) Switch at engine must be set to ON, battery disconnect

switch must be ON, and both the ground and platform emer-

gency stop switches must be set to ON.

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